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Interpretation:
The reason for the observation that water dissolved in
Concept introduction:
Many nuclei and electrons have spin, due to this spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an
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Chapter 13 Solutions
EBK ORGANIC CHEMISTRY
- What should be the spin and parity for the ground states of the following nuclei ? a) 20Ca b) Mo c) 3 P 31 15 d) ¹2C e) ¹25Tearrow_forwardrate of ith decay mechanism rate of removal of the singlet state rate of ith decay mechanism rate of formation of the singlet state rate of removal of the singlet state rate of ith decay mechanism Step 4 of 6 Give the quantum yield j. (Use the following as necessary: kj, k1, k2, k3, and t.) k; k1 + k, + k ki 3 ki + k2 + k3 Recalling the relationship between the overall rate constant, k, and the mean lifetime, T, give the quantum yield ¢; in terms of t and Tj. (Use the following as necessary: T and T;) O; = i Step 5 of 6 (c) If T1 = 1×10-7 s, Tɔ = 4×10-8 s, and T3 = 1×10-8 s, calculate the lifetime of the singlet state and the quantum yield for the path that has Tɔ. (Enter an unrounded value with at least 3 digits.) Calculate using the equation given in (b). 1 135e6 135000000 s-1 Solve for T, the lifetime of the singlet state. T = |7.407e-9 7.40740740740741e-09 s Step 6 of 6 Give the equation for the quantum yield for the path that has T2, P2. (Use the following as necessary: T, T1, T2,…arrow_forwardA major university was designated as a national nuclear magnetic resonance center by the National Science Foundation. Several large superconducting instruments were being installed when a government safety inspector appeared and demanded to know what provisions were being made to handle the nuclear waste produced by these instruments. Assume you are the manager of the NMR center, and offer an explanation that could be understood by a nonscientist.arrow_forward
- What is commonly determined using Atomic Spectroscopy? Bodn energy Elemental composition Concentration Structurearrow_forwardPart C 66Cu 29 Cu → Zn +? 30 Express your answer as a nuclear syn ΑΣφarrow_forwardCalculate the difference between low spin and high spin electronic configurations in d7. AE = low spin - high spin о - до +Пс+ Пе - 2∆о + 2Пс + 2Пе о - до + 2Пс + 2Пе о - 2до +Пс+Пеarrow_forward
- Of the atoms/ions listed, select those with the electron configuration [Ne]3s23p6 and no unpaired electrons (zero overall spin). This is a multiple select question: none, one, more then one, or all answers can be correct. Group of answer choices Sc3+ Al3+ Al P3- Cl- Na+ Ar Ar+ Ca+ O2- Mgarrow_forwardThe spin quantum number of a nitrogen-14 nucleus isI= 1. What would be the nuclear magnetic resonance spectrum for a proton resonance line that was split by interactionwith (a) two. (b) three equivalent nitrogen-14 nuclei?arrow_forwardThe lithium concentration in serum taken from a patient being treated with lithium for manic-depressive illness was analyzed using flame emission spectroscopy. A sample of the serum gave a reading of 283 units for the intensity of the 671 nm red emission line. Then, 1.00 mL of a 11.5 mM lithium standard was added to 9.00 mL of serum. This spiked serum gave an intensity reading of 633 units at the 671 nm emission line. What is the original concentration of Lit in the serum? [Li*] = mM Create Your Account stv hulu G Search or type URL 24 & 4 5 6 7 R Y G K * COarrow_forward
- The lithium concentration in serum taken from a patient being treated with lithium for manic-depressive illness was analyzed using flame emission spectroscopy. A sample of the serum gave a reading of 313 units for the intensity of the 671 nm red emission line. Then, 1.00 mL of a 10.7 mM lithium standard was added to 9.00 mL of serum. This spiked serum gave an intensity reading of 775 units at the 671 nm emission line. What is the original concentration of Li* in the serum? [Li*] = mMarrow_forwardThe lithium concentration in serum taken from a patient being treated with lithium for manic-depressive illness was analyzed using flame emission spectroscopy. A sample of the serum gave a reading of 276 units for the intensity of the 671 nm red emission line. Then, 1.00 mL of a 10.8 mM lithium standard was added to 9.00 mL of serum. This spiked serum gave an intensity reading of 621 units at the 671 nm emission line. What is the original concentration of Li+ in the serum?arrow_forwardThe lithium concentration in serum taken from a patient being treated with lithium for manic-depressive illness was analyzed using flame emission spectroscopy. A sample of the serum gave a reading of 316 units for the intensity of the 671 nm red emission line. Then, 1.00 mL of a 10.0 mM lithium standard was added to 9.00 mL of serum. This spiked serum gave an intensity reading of 603 units at the 671 nm emission line, What is the original concentration of Li' in the serum? [Li*1 = mM Enter numeric valuearrow_forward
- Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
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